Dam Report

Harpold Reservoir dam

Oregon, USA Wright Creek Hazard Low
Today high
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Tonight low
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Dam height
58ft
Hazard rating
Low
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Harpold Reservoir -- None dam
Harpold Reservoir None · Wright Creek
About this dam

Harpold Reservoir

Harpold Reservoir, located in Klamath, Oregon, is a private water storage facility built in 1909 for irrigation purposes along Wright Creek. With a dam height of 58 feet and a storage capacity of 750 acre-feet, the reservoir plays a crucial role in supporting agricultural activities in the region. The low hazard potential and not rated condition assessment indicate that the structure is well-maintained and poses minimal risk to surrounding areas.

Managed by the Oregon Water Resources Department, Harpold Reservoir undergoes regular inspections and meets state regulatory standards for operation and enforcement. The reservoir covers a surface area of 120 acres and has a drainage area of 2.04 square miles. Its strategic location in the San Francisco District ensures efficient water distribution for irrigation, while the presence of outlet gates allows for controlled discharge up to 300 cubic feet per second, contributing to sustainable water resource management in the area.

With its long history of providing water for agricultural activities, Harpold Reservoir stands as a testament to the importance of water infrastructure in supporting local economies and communities. The reservoir's Earth dam type and close monitoring of its operations demonstrate a commitment to efficient water use and environmental stewardship. Climate enthusiasts and water resource advocates can appreciate the reservoir's role in maintaining a reliable water supply for irrigation while minimizing potential risks and hazards to the surrounding area.

StateNone
River / streamWright Creek
NID IDOR00240
Owner typePrivate
Primary purposeIrrigation
Dam typeEarth
Year built1909
Dam height58 ft
Dam length500 ft
Max storage750 AF
Normal storage750 AF
Surface area120.0 ac
Drainage area2.0 sq mi
Hazard potentialLow
ConditionNot Rated
Last inspectionTue, 21 Oct 2014 00:00:00 GMT

Dam data reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action.
Poor
A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environmental damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Detailed forecast

Plan around the weather

Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Harpold Reservoir -- inflows here typically show up in storage 24-72 hours later.

Track Harpold Reservoir in the Snoflo app

Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.

FAQ

About Harpold Reservoir

Where does the data for Harpold Reservoir come from?

Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.

How often is the report updated?

NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.

What does the Low hazard rating mean?

The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.

What's "% of normal"?

The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).

Can I get alerts when storage crosses a threshold?

Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.

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